ACT14

Industrial transmitting power triode intended for RF amplification, oscillation, or modulation. Manufacturer data emphasize substantial plate power, professional transmitter operation, and construction suited to continuous high-power service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 19 V / 72 A

Description

The ACT14 is a forced-air-cooled transmitting triode with a tungsten filament for high-frequency power-amplifier, oscillator, and modulator service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 19 V
Nominal heater current: 72 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.009 S
Max plate voltage: 12000 V
Max plate dissipation: 10000 W
Max grid dissipation: 350 W

Published maximum ratings and characteristics audited; remaining useful numerical data retained in TUBE_SECTION_PARAMETER.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

FILAMENT POSTS
7
FILAMENT POSTS 7 MM.
with a tungsten filament. (d-—
15
with a tungsten filament. (d-— 15" MAX.
is approximately [1]
0 mA
is approximately 0-021 Q2. The filament current must .
is approximately [2]
-21 mA
is approximately 0-021 Q2. The filament current must .
Published value
15 V
15 minutes without anode voltage being applied, the
APPROXIMATE DATA (
2 W
APPROXIMATE DATA (2) HF POWER AMPLIFIER. CLASS C
Vi [1]
18
Vi 18-20 v (Anode modulated, one valve, carrier conditions,
Vi [2]
-20
Vi 18-20 v (Anode modulated, one valve, carrier conditions,
(
3 W
(3) HF POWER AMPLIFIER.
Published value [1]
10
10 A emission at 909, saturation. modulation 100%,)
Published value [2]
909
10 A emission at 909, saturation. modulation 100%,)
Published value [3]
100
10 A emission at 909, saturation. modulation 100%,)
( [1]
1 W
(1) HF POWER AMPLIFIER AND Va =270 -220 v
( [2]
270 W
(1) HF POWER AMPLIFIER AND Va =270 -220 v
( [3]
-220 W
(1) HF POWER AMPLIFIER AND Va =270 -220 v
Par (a) [1]
200 V
Par (a) 200 200 320 W the anode voltage must be reduced to the following
Par (a) [2]
200 V
Par (a) 200 200 320 W the anode voltage must be reduced to the following
Par (a) [3]
320 V
Par (a) 200 200 320 W the anode voltage must be reduced to the following